May weather forecast
Ostrava, Czech Republic

May ushers in the beginning of the warm season in Ostrava. Going up to 19°C (66.2°F), the temperature creates a pleasant atmosphere ideal for outdoor activities. Compared to the previous month, more sunlight saturates the city, ripening foliage and boosting natural beauty. While rainfall becomes more frequent, the warmth offset by cool breezes offers one the best weather periods in the city. Servers in local cafés start setting up tables outside as residents enjoy the bright, cheery weather.

Temperature

May marks a rise in the average high-temperature in Ostrava, moving from April's mild 14°C (57.2°F) to a still refreshing 19°C (66.2°F). Ostrava's nighttime temperature in May falls to an average of 8°C (46.4°F).

Rainfall

In Ostrava, in May, it is raining for 15 days, with typically 82mm (3.23") of accumulated precipitation. Throughout the year, there are 162 rainfall days, and 684mm (26.93") of precipitation is accumulated.

Daylight

The average length of the day in May in Ostrava is 15h and 25min.
On the first day of the month, sunrise is at 05:22 and sunset at 20:05. On the last day of May, sunrise is at 04:43 and sunset at 20:45 CEST.

Sunshine

The months with the most sunshine are May through August, with an average of 7h of sunshine.

UV index

In May, the average daily maximum UV index in Ostrava is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 6 during May leads to these advisories:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.